Watch dial



FIG. 1 is a front perspective view illustrating my design for a watch dial;

FIG. 2 is a front view thereof;

FIG. 3 is a left view thereof;

FIG. 4 is a top view thereof;

FIG. 5 is a right view thereof;

FIG. 6 is a bottom view thereof; and,

FIG. 7 is a rear view thereof. 

The ornamental design for a watch dial, as shown and described. 